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Find the range and standard deviation

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Reference no: EM13833000

1. Find the range and standard deviation of the set of data

1325, 25, 225, 75, 315

2. An assembly-line machine turns out washers with the following thicknesses (in millimeters). Find the mean and standard deviation of the thickness.

1.52, 1.76, 1.25, 2.09, 1.32, 1.29, 1.98, 1.49

2.03, 1.52, 1.65, 1.36, 1.48, 1.56, 1.93, 1.76

3. Find the mean and standard deviation for the individualized instruction scores.

Scores

Individualized Instruction

50-59

2

60-69

4

70-79

6

80-89

11

90-99

8

 

Reference no: EM13833000

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